CN107328327A - The soft or hard blast hole loading structure and its method for being mingled with beded rock mass Long-hole Bench Blasting - Google Patents
The soft or hard blast hole loading structure and its method for being mingled with beded rock mass Long-hole Bench Blasting Download PDFInfo
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- CN107328327A CN107328327A CN201710767717.2A CN201710767717A CN107328327A CN 107328327 A CN107328327 A CN 107328327A CN 201710767717 A CN201710767717 A CN 201710767717A CN 107328327 A CN107328327 A CN 107328327A
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- 239000011435 rock Substances 0.000 title claims abstract description 75
- 238000005422 blasting Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 51
- 239000003721 gunpowder Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 230000009172 bursting Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 36
- 239000007789 gas Substances 0.000 description 30
- 238000005474 detonation Methods 0.000 description 11
- 238000004880 explosion Methods 0.000 description 8
- 239000002360 explosive Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Abstract
The present invention provides a kind of soft or hard blast hole loading structure and method for being mingled with beded rock mass Long-hole Bench Blasting, and beded rock mass includes multilayer hard rock stratum and multilayer weak intercalated layer, and hard rock stratum is successively alternately distributed from top to bottom with weak intercalated layer；Relative position is provided with powder charge section in each hard rock stratum, and powder charge section is interior to be filled with gunpowder；Adjacent powder charge is intersegmental provided with filling section, clogs and stemming is filled with section, and filling section two ends enter adjacent hard rock stratum, and orlop hard rock stratum is provided with bottom hole filling section；Blast hole loading structure demolition effect of the present invention is good, blasting cost is low.
Description
Technical field
The present invention relates to explosion field, and in particular to a kind of soft or hard blast hole projectile filling for being mingled with beded rock mass Long-hole Bench Blasting
Structure and its method.
Background technology
With rig and load transporting equipment and update, the constantly improve of blasting technique, and explosive precision
Continuous improvement, the superiority of deep hole step is more and more obvious, and its application field is constantly widened, and application constantly expands, mesh
Before be widely used to the rocks of the technical fields such as surface mine exploitation, infrastructure construction, Hydraulic and Hydro-Power Engineering, earthwork evacuation
In stone blasting engineering.Due to the quality of blasting quality, directly affect block stone and adopt dress, cost of transportation and vibrations safety, decide
The economic benefit of blasting engineering, to improve the economic benefit and security of step, fireman author is made that fruitful skill
Art is improved and reformed, including release shock dropping, allotment boulder yield, the control various aspects such as foundation, and these achievements are for most of rocks
Property single high step engineering significance it is great, but for rock stratum complicated condition, the particularly soilstone ratio in shallow layer surface
In engineering, because variation of lithological fluctuation is big, soft or hard to be mingled with, using conventional blast method, blasting quality is difficult to control to, and boulder yield shows
Existing irregular, second-time breakage workload is larger, and cost remains high, but in existing achievement in research and conceptual design, and
Targetedly technology exploration and conceptual design are not carried out for this engineering geological condition.
In traditional deep hole step technique, blasting arrangement is not considered along the lithology difference on blast hole depth direction, but is adopted
With single charge constitution form, in the soft or hard beded rock mass being mingled with, compared to competent bed, the resistance to compression of weak intercalated layer and tension are strong
Degree is extremely low, almost can be ignored.Now, weak intercalated layer readily becomes the discharge channel of detonation gas and weakened quick-fried raw high
Calm the anger the attrition crushing and thrown results of body；On the other hand, in the case where bulk solid rock does not produce quick-fried raw crackle, by
The second-time breakage principle collided in the presence of weak intercalated layer, throwing process using block stone is difficult to crush large rock mass, and this will
The boulder yield of the cubic metre of earth and stone is improved, and it is irregular.
Therefore, the soft or hard big gun for being mingled with beded rock mass Long-hole Bench Blasting that a kind of demolition effect is good, blasting cost is low is needed badly
Hole charge constitution.
The content of the invention
In view of this, it is the technical problem that demolition effect is poor, blasting cost is high of solution soft or hard jointed rockmass of the prior art,
The present invention is intended to provide the soft or hard blast hole projectile filling for being mingled with beded rock mass Long-hole Bench Blasting that a demolition effect is good, blasting cost is low
Structure and its method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting, beded rock mass include multilayer hard rock stratum and
Multilayer weak intercalated layer, hard rock stratum is successively alternately distributed from top to bottom with weak intercalated layer；Relative position is provided with each hard rock stratum
Gunpowder is filled with powder charge section, powder charge section；Adjacent powder charge is intersegmental to clog and stemming is filled with section provided with filling section, clogs section
Two ends enter adjacent hard rock stratum, and section is clogged in orlop hard rock stratum provided with bottom hole.
By the way that powder charge section is arranged at into hard rock stratum, the gases at high pressure produced when powder charge section is ignited are limited in hard rock stratum
In, prevent gases at high pressure from escaping to cause demolition effect to weaken from weak intercalated layer, the workload of secondary blasting is reduced, by explosive
Quick-fried raw gases at high pressure mainly act on competent bed with detonation wave, for forming a large amount of quick-fried raw cracks in competent bed, then
The secondary collision effect brought using detonation gas throwing rock mass, by while quick-fried raw crack is rushed open in competent bed, is destroyed soft
The cementation of weak interlayer, finally realizes that the soft or hard boulder yield being mingled with during stratiform rock blasting is controllable.
It is preferred that, powder charge section top is more than or equal to 200mm with closing on the distance from bottom of the weak intercalated layer at the top of powder charge section.
Ensure powder charge section and the distance of weak intercalated layer, it is to avoid the gases at high pressure produced during explosion are escaped from soft layer.
When being clogged in weak intercalated layer region with stemming, directly contacted with weak intercalated layer to separate quick-fried raw gases at high pressure.Protect
The limitation of gases at high pressure is produced when card filling section is to powder charge section explosion, it is to avoid gases at high pressure loss, the filling section of stemming filling is quick-fried
Intensity is big when broken, the local assault power enhancing demolition effect that the rupture of explosion moment is produced.
It is preferred that, with being located at same level at the top of filling section at the top of the weak intercalated layer of the superiors.
The present invention also provides a kind of soft or hard blast hole projectile filling method for being mingled with beded rock mass Long-hole Bench Blasting, including following step
Suddenly：
S1：In with treating quick-fried region list notation blasthole position；
S2：Set up in mark blasthole position in drill hole of drilling machine, boring procedure, in real time the lithology of record blasthole core boring sampling and corresponding
Overburden depth, until the construction of all blastholes is finished；
S3：By in each blasthole lithology and overburden depth parameter input three-dimensional geological imaging software, simulation, which is drawn, treats quick-fried region entirety
Lithology distributions rule；
S4：Powder charge scheme is designed according to the lithologic character of each blasthole, powder charge process follows following rule；
1. the filling section filling of the weak intercalated layer stemming formation of blasthole；
2. competent bed is goed deep at filling section two ends；
3. the powder charge section filling that the intersegmental competent bed of two adjacent fillings is formed with gunpowder；
S5：According to Ignition plan igniting primer, bursting work is completed.
By the way that powder charge section is arranged at into hard rock stratum, the gases at high pressure produced when powder charge section is ignited are limited in hard rock
Layer, prevents gases at high pressure from escaping to cause demolition effect to weaken from weak intercalated layer, the workload of secondary blasting is reduced, by explosive
Quick-fried raw gases at high pressure mainly act on competent bed with detonation wave, for forming a large amount of quick-fried raw cracks in competent bed, then
The secondary collision effect brought using detonation gas throwing rock mass, by while quick-fried raw crack is rushed open in competent bed, is destroyed soft
The cementation of weak interlayer, finally realizes that the soft or hard boulder yield being mingled with during stratiform rock blasting is controllable.
It is preferred that, powder charge section top is more than or equal to 200mm with closing on the distance from bottom of the weak intercalated layer at the top of powder charge section.
It is preferred that, step S4Afterwards, the bottom hole formed by stemming is set to clog section, bottom hole filling in orlop hard rock stratum
Section is arranged at immediately below undermost powder charge section bottom.
Beneficial effects of the present invention：
1. the blasting arrangement of soft or hard sandwich-like rock mass deep hole step provided by the present invention, by the way that powder charge section is arranged at into hard rock
Layer, the gases at high pressure that produce are limited in hard rock stratum when powder charge section is ignited, prevent gases at high pressure from weak intercalated layer effusion so as to
Cause demolition effect to weaken, reduce the workload of secondary blasting, the quick-fried raw gases at high pressure of explosive and detonation wave are mainly acted on into heavily fortified point
Hard formation, for forming a large amount of quick-fried raw cracks in competent bed, then secondary is touched using what detonation gas throwing rock mass was brought
The effect of hitting, by while quick-fried raw crack is rushed open in competent bed, destroys the cementation of weak intercalated layer, finally realizes soft or hard be mingled with
Boulder yield in beded rock mass blasting process is controllable.
2. a kind of blasting method of soft or hard sandwich-like rock mass deep hole step provided by the present invention, does not increase live drilling
Workload and work difficulty；Three-dimensional geological imaging is completed by computer, and work difficulty is small；Quick-fried raw gases at high pressure are limited in hard
Rock stratum section；The blasting work amount of second-time breakage is substantially reduced, reduction block stone loads cost of transportation, improves economic benefit of engineering.
Brief description of the drawings
Fig. 1 is the blasting arrangement schematic diagram of soft or hard sandwich-like rock mass deep hole step in specific embodiment；
Wherein：10- weak intercalated layers；20- hard rock stratum；30- clogs section；40- powder charges section；50- bottom holes clog section.
Specific embodiment
As shown in figure 1, the present embodiment provides a kind of blasting arrangement of soft or hard sandwich-like rock mass deep hole step, including multilayer hard rock
Layer 20 and multilayer weak intercalated layer 10, hard rock stratum 20 is successively alternately distributed from top to bottom with weak intercalated layer 10；Each hard rock stratum 20
Middle relative position is provided with powder charge section 40, and powder charge section 40 is interior to be filled with gunpowder；Provided with filling section 30, filling between adjacent powder charge section 40
Stemming is filled with section 30, filling section 30 two ends enter corresponding hard rock stratum 20, and orlop hard rock stratum 20 is filled out provided with bottom hole
Fill in section 50.
By the way that powder charge section 40 is arranged at into hard rock stratum 20, the gases at high pressure produced when powder charge section 40 is ignited are limited in firmly
Homogenous rock stratum 20, prevents gases at high pressure from escaping to cause demolition effect to weaken from weak intercalated layer 10, reduces the work of secondary blasting
The quick-fried raw gases at high pressure of explosive and detonation wave are mainly acted on competent bed 20 by amount, for forming a large amount of in competent bed 20
Quick-fried raw crack, is then acted on using the secondary collision that detonation gas throwing rock mass is brought, quick-fried raw crack in competent bed 20 is hit
While opening, the cementation of weak intercalated layer 10 is destroyed, the soft or hard boulder yield being mingled with during stratiform rock blasting is finally realized
It is controllable.
The distance from bottom of weak intercalated layer 10 of the top of powder charge section 40 with closing on the top of powder charge section 40 is more than or equal to 200mm.
Ensure powder charge section 40 and the distance of weak intercalated layer 10, it is to avoid the gases at high pressure produced during explosion are escaped from soft layer.
Clog the two ends of section 30 and enter the distance of hard rock stratum 20 more than or equal to 200mm.
When being clogged in the region of weak intercalated layer 10 with stemming, directly connect with weak intercalated layer 10 to separate quick-fried raw gases at high pressure
Touch.Ensure the limitation of generation gases at high pressure during 30 pairs of powder charge 40 explosions of section of filling section, it is to avoid gases at high pressure loss, stemming filling
Section 30 is clogged, intensity is big during explosion, the local assault power enhancing demolition effect that the rupture of explosion moment is produced.
It is preferred that, the top of weak intercalated layer 10 and the top of filling section 30 of the superiors are located at same level.
A kind of soft or hard blast hole projectile filling method for being mingled with beded rock mass Long-hole Bench Blasting of the present embodiment, comprises the following steps：
S1：In with treating quick-fried region list notation blasthole position；
S2：Set up in mark blasthole position in drill hole of drilling machine, boring procedure, in real time the lithology of record blasthole core boring sampling and corresponding
Overburden depth, until the construction of all blastholes is finished；
S3：By in each blasthole lithology and overburden depth parameter input three-dimensional geological imaging software, simulation, which is drawn, treats quick-fried region entirety
Lithology distributions rule；
S4：Powder charge scheme is designed according to the lithologic character of each blasthole, powder charge process follows following rule；
4. the filling section 30 of the stemming of weak intercalated layer 10 formation of blasthole is filled；
5. competent bed 20 is goed deep at filling section 30 two ends；
6. the powder charge section 40 that the competent bed 20 between two adjacent filling sections 30 is formed with gunpowder is filled；
S5：According to Ignition plan igniting primer, bursting work is completed.
By the way that powder charge section 40 is arranged at into hard rock stratum 20, the gases at high pressure produced when powder charge section 40 is ignited are limited in firmly
Homogenous rock stratum 20, prevents gases at high pressure from escaping to cause demolition effect to weaken from weak intercalated layer 10, reduces the work of secondary blasting
The quick-fried raw gases at high pressure of explosive and detonation wave are mainly acted on competent bed 20 by amount, for forming a large amount of in competent bed 20
Quick-fried raw crack, is then acted on using the secondary collision that detonation gas throwing rock mass is brought, quick-fried raw crack in competent bed 20 is hit
While opening, the cementation of weak intercalated layer 10 is destroyed, the soft or hard boulder yield being mingled with during stratiform rock blasting is finally realized
It is controllable.
The distance from bottom of weak intercalated layer 10 of the top of powder charge section 40 with closing on the top of powder charge section 40 is more than or equal to 200mm.
Step S4Afterwards, the bottom hole formed by stemming is set to clog section 30, bottom hole filling section in orlop hard rock stratum 20
30 are arranged at immediately below undermost 40 bottoms of powder charge section.
It is the wherein specific implementation of the present invention above, it describes more specific and detailed, but can not therefore manage
Solve as the limitation to the scope of the claims of the present invention.For the person of ordinary skill of the art, present inventive concept is not being departed from
Under the premise of, various modifications and improvements can be made, these obvious alternative forms belong to protection scope of the present invention.
Claims (6)
1. a kind of soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting, it is characterised in that beded rock mass includes
Multilayer hard rock stratum and multilayer weak intercalated layer, hard rock stratum are successively alternately distributed from top to bottom with weak intercalated layer；Each hard rock stratum
Middle relative position is provided with powder charge section, and powder charge section is interior to be filled with gunpowder；Adjacent powder charge is intersegmental provided with filling section, clogs in section and fills
There is stemming, filling section two ends enter adjacent hard rock stratum, and section is clogged in orlop hard rock stratum provided with bottom hole.
2. the soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting according to claim 1, its feature exists
In powder charge section top is more than or equal to 200mm with closing on the distance from bottom of the weak intercalated layer at the top of powder charge section.
3. the soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting according to claim 1, its feature exists
In with being located at same level at the top of filling section at the top of the weak intercalated layer of the superiors.
4. a kind of side of soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting as described in claim 1-3
Method, it is characterised in that comprise the following steps：
S1：In with treating quick-fried region list notation blasthole position；
S2：Set up in mark blasthole position in drill hole of drilling machine, boring procedure, in real time the lithology of record blasthole core boring sampling and corresponding
Overburden depth, until the construction of all blastholes is finished；
S3：By in each blasthole lithology and overburden depth parameter input three-dimensional geological imaging software, simulation, which is drawn, treats quick-fried region entirety rock
The property regularity of distribution；
S4：Powder charge scheme is designed according to the lithologic character of each blasthole, powder charge process follows following rule；
The filling section that the weak intercalated layer of blasthole is formed by stemming is filled；
Competent bed is stretched at filling section two ends；
The intersegmental powder charge section filling formed with gunpowder of two adjacent fillings；
S5：According to Ignition plan igniting primer, bursting work is completed.
5. the method for the soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting according to claim 4, its
It is characterised by, powder charge section top is more than or equal to 200mm with closing on the distance from bottom of the weak intercalated layer at the top of powder charge section.
6. the method for the soft or hard blast hole loading structure for being mingled with beded rock mass Long-hole Bench Blasting according to claim 5, its
It is characterised by, step S4Afterwards, the bottom hole formed by stemming is set to clog section in orlop hard rock stratum, bottom hole filling section is set
Immediately below undermost powder charge section bottom.
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| CN201710767717.2A CN107328327A (en) | 2017-08-31 | 2017-08-31 | The soft or hard blast hole loading structure and its method for being mingled with beded rock mass Long-hole Bench Blasting |
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| CN201710767717.2A CN107328327A (en) | 2017-08-31 | 2017-08-31 | The soft or hard blast hole loading structure and its method for being mingled with beded rock mass Long-hole Bench Blasting |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363873A (en) * | 2018-02-12 | 2018-08-03 | 辽宁工程技术大学 | A kind of lithology discrimination method based on mining-drilling machine |
| CN108489348A (en) * | 2018-01-31 | 2018-09-04 | 江西铜业股份有限公司 | A kind of deep hole and the knockdown hard rock air bench blasting method of short-bore |
| CN109737846A (en) * | 2019-02-28 | 2019-05-10 | 武汉大学 | A kind of anti-blasting method of miss-firing of low angle stratified rockmass |
| CN109737840A (en) * | 2018-11-30 | 2019-05-10 | 中建华东投资有限公司 | More Tunnel Constructions based on weak intercalated layer |
| CN110207555A (en) * | 2019-07-09 | 2019-09-06 | 中交路桥建设有限公司 | A kind of weak intercalated layer geology Slope Controlled Blasting method |
| WO2019203731A1 (en) * | 2018-04-19 | 2019-10-24 | Orica International Pte. Ltd. | Blasting technique |
| CN112361910A (en) * | 2020-10-27 | 2021-02-12 | 新疆雪峰爆破工程有限公司 | Mining method for accurate delay in-situ blasting and crushing of layered rock mass |
| CN113515793A (en) * | 2021-05-14 | 2021-10-19 | 辽宁工程技术大学 | Method for designing blast hole charging structure based on lithologic distribution |
| CN113515793B (en) * | 2021-05-14 | 2024-04-26 | 辽宁工程技术大学 | Method for designing charge structure of blast hole based on lithology distribution |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489348A (en) * | 2018-01-31 | 2018-09-04 | 江西铜业股份有限公司 | A kind of deep hole and the knockdown hard rock air bench blasting method of short-bore |
| CN108489348B (en) * | 2018-01-31 | 2019-10-29 | 江西铜业股份有限公司 | A kind of deep hole and the knockdown hard rock air bench blasting method of short-bore |
| CN108363873A (en) * | 2018-02-12 | 2018-08-03 | 辽宁工程技术大学 | A kind of lithology discrimination method based on mining-drilling machine |
| WO2019203731A1 (en) * | 2018-04-19 | 2019-10-24 | Orica International Pte. Ltd. | Blasting technique |
| US11555681B2 (en) | 2018-04-19 | 2023-01-17 | Orica International Pte Ltd | Blasting technique |
| CN109737840A (en) * | 2018-11-30 | 2019-05-10 | 中建华东投资有限公司 | More Tunnel Constructions based on weak intercalated layer |
| CN109737840B (en) * | 2018-11-30 | 2021-02-26 | 中建华东投资有限公司 | Multi-tunnel construction method based on soft interlayer |
| CN109737846B (en) * | 2019-02-28 | 2021-04-16 | 武汉大学 | Anti-explosion blasting method for gentle dip angle stratified rock mass |
| CN109737846A (en) * | 2019-02-28 | 2019-05-10 | 武汉大学 | A kind of anti-blasting method of miss-firing of low angle stratified rockmass |
| CN110207555A (en) * | 2019-07-09 | 2019-09-06 | 中交路桥建设有限公司 | A kind of weak intercalated layer geology Slope Controlled Blasting method |
| CN112361910A (en) * | 2020-10-27 | 2021-02-12 | 新疆雪峰爆破工程有限公司 | Mining method for accurate delay in-situ blasting and crushing of layered rock mass |
| CN113515793A (en) * | 2021-05-14 | 2021-10-19 | 辽宁工程技术大学 | Method for designing blast hole charging structure based on lithologic distribution |
| CN113515793B (en) * | 2021-05-14 | 2024-04-26 | 辽宁工程技术大学 | Method for designing charge structure of blast hole based on lithology distribution |
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